The white-headed eagle, the most powerful and the best provided of the birds, ordinarily builds its nest on the sides of barrancas, at the top of the loftiest trees, and chiefly those denuded of branches to a considerable height, but they are never found on rocks. This nest, strongly built, is composed of sticks from three to five feet in length, fastened together and covered with Spanish braid, a species of cryptogamic plant of the lichen family, wild grass, and large patches of turf. When the nest is completed, it ordinarily measures from six to seven feet in diameter, and at times the accumulation of materials there is so considerable--for the same nest is frequently occupied for a number of years, and receives augmentations each season--that its depth equals its diameter. As the nest of the white-headed eagle is very heavy, it is generally placed in the centre of a fork formed by the fortuitous meeting of several large branches. John Davis, by the help of his torch, had just discovered a few yards from him, and almost on a level with the spot where he was standing, an eagle's nest, built on the top of an immense tree, whose trunk descended for a considerable depth in the precipice. Two human bodies were lying stretched across this nest, and the American only required one glance to assure himself that they were those of the Jaguar and the Mexican Captain. They were perfectly motionless, and still fast locked in each other's arms. It was not at all an easy undertaking to reach this nest, which was nearly ten yards from the sides of the precipice; but John Davis did not give in on that account; now that he had found the body of his Chief again, he was determined to learn, at all risks, whether he were alive or dead. But what means was he to employ to acquire this certainty? How reach the tree, which oscillated violently with every gust? After ripe reflection, the American recognized the fact that he could never climb the tree alone; he therefore placed his hands funnel-wise to his month, and gave the shout agreed on with his comrades. The latter drew up the reata, and after half an hour of unheard of fatigue, Davis found himself again among his comrades. The Border Rifles crowded round him eagerly to ask the details of his expedition, which he hastened to give them, and which were received with shouts of joy by all. Then happened a thing which proves how great was the affection all these men bore their Chief; without exchanging a word, or coming to any agreement, all procured torches, and, as if obeying the same impulse, began descending the abyss.